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A DIY Smart Kit for your JuiceBox

Here is an inexpensive ($49) and simple upgrade to make your JuiceBox smart again.  All existing parts are reused so there is no need to throw anything away.  You'll end up with a smart controller using WiFi that allows you to control your JuiceBox from any web browser.  No app or cloud is required.

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You can even easily integrate into your home automation system like Home Assistant.

​And this product is based off of the SolarEVSE so it has all the same features to be a power diverter/solar tracker.

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The kit comes with everything you need and the only tools required is a screwdriver, cutter and crimpers/pliers.  It is specifically designed to easily interface with the JuiceBox.

SolarEVSE smart kit for JuiceBox
SolarEVSE smart kit for JuiceBox

SolarEVSE kit for JuiceBox

Installs in a few minutes.  Unscrew 4 screws, open cover, add board, cut 1 wire, crimp connections and connect a connector onto the main board.

After installation, you can access your JuiceBox using a Web Browser.  There is a web page server built into our added board along with a way to send pertinent data via a messaging format called MQTT.  MQTT allows you to integrate into almost all modern third-party home automation software.  The images below are some of the different ways to access your JuiceBox. The first set of images show the Home page for the native Web Browser interface.  The next images show the MQTT data presented in a Node-RED application and the last image shows the MQTT data in a Home Assistant software.

Web Browser Interface

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Node-RED Interface

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Note. The Web Browser interface contains all the features while the MQTT interfaces only have a subset of features that can be changed or displayed.  

Home Assistant Interface

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Features:

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  • Variable current setting (pilot) from 6A to your JuiceBox's max in increments of 1A

  • Restores your JuiceBox back to its full max current

  • Schedule when to charge and stop

  • Stop either by time elapsed or energy delivered*

  • Reports JuiceBox errors

  • Reports JuiceBox's internal temperature

  • Reports the current delivered to your EV**

  • Start/Stop charging

  • Charging status

  • Retains all the safety features originally built in since the main JuiceBox board and firmware are still being used 

  • Supports MQTT data communication

  • Scripts we used to integrate into Node-RED and Home Assistant will be provided free

  • Auto tracking/Manual/Bypass modes

  • Auto tracking with extra solar power feature requires PowerMC (power meter and master controller)

  • WiFi STA/AP 2.4GHz with WPS support

  • Signal strength and connection indicators

  • Built in web page server, no app or cloud needed

  • Basic HTML user interface for compatibility with all web browsers

  • Supports mDNS addressing

  • Open source firmware

  • Automatic firmware update via the Internet

  • -20F to 140F

  • Outdoor/Indoor use

  • 5V, 300mA

  • Board size is approximately 50x25x12mm (LxWxH)

  • 1 year warranty

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   * approximately for JuiceBox Version 2 (white plastic body)

 ** only for JuiceBox Version 1 (black metal body)

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